+@media (min-resolution: 2dppx) {
+ #step-over {
+ list-style-image: url(debugger-step-over@2x.png);
+ -moz-image-region: rect(0px, 32px, 32px, 0);
+ }
+
+ #step-over:hover {
+ -moz-image-region: rect(0px, 64px, 32px, 32px);
+ }
+
+ #step-in {
+ list-style-image: url(debugger-step-in@2x.png);
+ -moz-image-region: rect(0px, 32px, 32px, 0);
+ }
+
+ #step-in:hover {
+ -moz-image-region: rect(0px, 64px, 32px, 32px);
+ }
+
+ #step-out {
+ list-style-image: url(debugger-step-out@2x.png);
+ -moz-image-region: rect(0px, 32px, 32px, 0);
+ }
+
+ #step-out:hover {
+ -moz-image-region: rect(0px, 64px, 32px, 32px);
+ }
+}
+
+#instruments-pane-toggle {
+/* background: none;
+ box-shadow: none;
+ border: none; */
+ list-style-image: url("chrome://browser/skin/devtools/debugger-collapse.png");
+ -moz-image-region: rect(0px,16px,16px,0px);
+}
+
+#instruments-pane-toggle[pane-collapsed] {
+ list-style-image: url("chrome://browser/skin/devtools/debugger-expand.png");
+}
+
+#instruments-pane-toggle:hover {
+ -moz-image-region: rect(0px,32px,16px,16px);
+}
+
+@media (min-resolution: 2dppx) {
+ #instruments-pane-toggle {
+ list-style-image: url(debugger-collapse@2x.png);
+ -moz-image-region: rect(0px,32px,32px,0px);
+ }
+
+ #instruments-pane-toggle[pane-collapsed] {
+ list-style-image: url(debugger-expand@2x.png);
+ }
+
+ #instruments-pane-toggle:hover {
+ -moz-image-region: rect(0px,64px,32px,32px);
+ }
+}
+
+/* Horizontal vs. vertical layout */
+
+#vertical-layout-panes-container {
+ min-height: 35vh;
+ max-height: 80vh;
+}
+
+#body[layout=vertical] #instruments-pane {
+ margin: 0 !important;
+ /* To prevent all the margin hacks to hide the sidebar. */